Mounting for abrasive wheels or the like



I I April 29, 1930. 5 w PERKS 2 1,756,259

MOUNTING FOR ABRASIVE WHEELS OR THE LIKE Filed Nov. 22 1926 INVENTOR. 520%: W Bwks.

ATTORNEYS.

'Patented Apr. 29,1930

' UNITED s'ra'r azs PATENT OFFICE A enonen'w. rEnKs oF Anson, onrqnssrsnon TO THE GEORGE w. BERKS COMPANY,

' or AKRON,

OHIO, A CORPORATION OF OHIO MOUNTING FOR ABRASIVEH WHEELS o'n THE LIKE Application'filed.November 22, 192c. Serial'No. 149,828.

This invention relates to av new and I improved form of mounting for abrasive wheels v or similar objects, the specific purpose of the invention being to provide an improved clamping device for a wheel of this type at high speeds.

The surfaces of abrasive wheels are irregular, being formed with numerous minute elevations and depressions and the invention utilizes a form of metallic screen or lamina which will securely grip the rough'surfaces of the wheels. The specific description of c the invention will be given in connection with drawings illustrating the preferred form of the invention, in which I, V

Figure 1 is a side elevation of an abrasive wheel; I

Figure 2 is a section through the center of the wheel;

Figure3 is an enlarged viewof a section of the wheel showing the manner in which the metallic screen grips the surface of the wheel; and Figure 4 is an enlarged view of the metallic screen.

In the drawings, the numeral 1 represents the usual power shaft upon which the abrasive wheel 2 is mounted, the wheel being retained between two clampingplates 3 and clamped securely by a nut 4:. These plates are preferably formed with raised annular bearing surfaces 5 about their outer peripheries so that the pressure is concentrated near the periphery of the wheel. Between the plates and the wheel are placed thin metallic disks or secondary plates 6 and between the disks and the wheel are located copper screen, the mesh being of such fineness that it is comparable to the minute irregularities or rugosities on the surfaces of the wheel.

sheets of fine wire mesh, preferably light The operation of the device is evident from an inspection of Figure 3 which is enlarged sufiiciently so that the minute irregularities are shown inthe manner in which they are embedded within the apertures of the wire' meshby pressure exerted by the nut 4, the

soft metal screen yielding sufliciently so that the mesh will substantially seat in the lower surfaces or valleys of the wheel and the projections or irregularities protrude between the openings in the mesh. In this manner the wheel is securely held and any fragments which might break away from the main body of the wheel or any section of the wheel will 7 be securely anchored in place and cannot fiy apart.

Other forms of wire or screen may be substituted for the fine woven wire mesh shown a sheet or lamina with a plurality of small apertures or recesses therein, in which the elevations or high spots upon the surfaces of the wheel may become embedded.

W hat is claimed is: 1. A mounting for abrasive wheels having surfaces with minute elevations and depressition.

3. A mounting for abrasive wheels having surfaces with minute elevations and depressions, comprising a mesh of fine wire held under compression against the side of the wheel, so that the elevations will be embedded within the interstices of the mesh.

4. A mounting for abrasive wheels having surfaces with minute elevations and depres sions, a screen having minute recesses therein,

and means to force the screen against the mesh so that the eleva-,

' and described, it being desirable to provide Wheel to a suificient extent to embed the elevations Within the recesses of the screen.

5. The combination of an abrasive Wheel having a surface with minute projections thereon, a metal screen having recesses therein comparable with the projections, and means to clamp the screen'against the surface of the Wheel with suflicient pressure to cause the projections to nest Within the recesses. 6. The combination of an abrasive Wheel having a surface with minute pro ections thereon, a metal screen havin recesses therein comparable with the projections, and means to clamp the screen against the surface of the Wheel with sufficient pressure to cause the projections to nest Within the re-, cesses, the pressure being concentrated in annular areas adjacent the outer circumference of the Wheel.

. GEORGE W. PERKS. 

